Digangana Mukherjee, a mother of a six-year-old girl and a 10-year-old boy, has banned television at her home in the Indian city of Mysore because she does not want her children to become addicted to watching content on screen. A year ago, when her son’s school started using a smart classroom board that streamed online content, she and her husband decided to enrol him in a school where teachers used chalk on a slate board, and the pace of lessons was slower. Now, she is happy that the Indian...